(19)

(11)

EP 2 831 070 A1

(12)

(43) Date of publication: 04.02.2015 Bulletin 2015/06 (21) Application number: 13768214.2 (22) Date of filing: 21.03.2013

(51) International Patent Classification (IPC):  C07D 453/02(2006.01) A61K 31/439(2006.01) C07D 401/12(2006.01) A61P 13/00(2006.01) (86) International application number: PCT/KR2013/002358 (87) International publication number: WO 2013/147458 (03.10.2013 Gazette 2013/40)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME (30) Priority: 28.03.2012 KR 20120031492 (71) Applicant: Kyung Dong Pharm. Co., Ltd. Yanggam-myeon, Hwaseong-si, Gyeonggi-do 445-931 (KR)	(72) Inventors: LEE, Byoung Suk Seoul 137-755 (KR) SHIN, Sang Hoon Suwon-si Gyeonggi-do 440-320 (KR) LEE, Ki Young Osan-si Gyeonggi-do 447-747 (KR) (74) Representative: McConchie, Connor Fraser  D Young & Co LLP 120 Holborn London EC1N 2DY London EC1N 2DY (GB)